Stability and decoherence of optical bipolaron in symmetric quantum dotA. J. Fotue, J.-R. D. Djomou, S. C. Kenfack, M. F. C. Fobasso and L. C. FaiEur. Phys. J. Plus, 135 10 (2020) 838DOI: https://doi.org/10.1140/epjp/s13360-020-00835-5